Home / 18,810.16-25,958.27-10,312.45

Finding the Fourth Proportional to 18,810.16, 25,958.27 and 10,312.45

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Solution

The fourth proportional to 18,810.16, 25,958.27 and 10,312.45 is: 14,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.16 : 25,958.27 = 10,312.45 : x
  2. Step 2: Convert to fraction form
    18,810.16/25,958.27 = 10,312.45/x
  3. Step 3: Cross multiply
    18,810.16x = 25,958.27 × 10,312.45
  4. Step 4: Simplify right side
    18,810.16x = 267,693,322.35
  5. Step 5: Solve for x
    x = 267,693,322.35/18,810.16
  6. Step 6: Final answer
    x = 14,231.32

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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.