Home / 18,345.16-25,316.24-10,387.18

Finding the Fourth Proportional to 18,345.16, 25,316.24 and 10,387.18

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Solution

The fourth proportional to 18,345.16, 25,316.24 and 10,387.18 is: 14,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.16 : 25,316.24 = 10,387.18 : x
  2. Step 2: Convert to fraction form
    18,345.16/25,316.24 = 10,387.18/x
  3. Step 3: Cross multiply
    18,345.16x = 25,316.24 × 10,387.18
  4. Step 4: Simplify right side
    18,345.16x = 262,964,341.80
  5. Step 5: Solve for x
    x = 262,964,341.80/18,345.16
  6. Step 6: Final answer
    x = 14,334.26

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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.