Home / 18,386.46-25,373.34-10,430.28

Finding the Fourth Proportional to 18,386.46, 25,373.34 and 10,430.28

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Solution

The fourth proportional to 18,386.46, 25,373.34 and 10,430.28 is: 14,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.46 : 25,373.34 = 10,430.28 : x
  2. Step 2: Convert to fraction form
    18,386.46/25,373.34 = 10,430.28/x
  3. Step 3: Cross multiply
    18,386.46x = 25,373.34 × 10,430.28
  4. Step 4: Simplify right side
    18,386.46x = 264,651,040.74
  5. Step 5: Solve for x
    x = 264,651,040.74/18,386.46
  6. Step 6: Final answer
    x = 14,393.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.