Home / 18,931.73-26,125.95-10,434.15

Finding the Fourth Proportional to 18,931.73, 26,125.95 and 10,434.15

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Solution

The fourth proportional to 18,931.73, 26,125.95 and 10,434.15 is: 14,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.73 : 26,125.95 = 10,434.15 : x
  2. Step 2: Convert to fraction form
    18,931.73/26,125.95 = 10,434.15/x
  3. Step 3: Cross multiply
    18,931.73x = 26,125.95 × 10,434.15
  4. Step 4: Simplify right side
    18,931.73x = 272,602,081.19
  5. Step 5: Solve for x
    x = 272,602,081.19/18,931.73
  6. Step 6: Final answer
    x = 14,399.22

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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.