Home / 18,925.72-26,117.16-10,428.64

Finding the Fourth Proportional to 18,925.72, 26,117.16 and 10,428.64

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Solution

The fourth proportional to 18,925.72, 26,117.16 and 10,428.64 is: 14,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.72 : 26,117.16 = 10,428.64 : x
  2. Step 2: Convert to fraction form
    18,925.72/26,117.16 = 10,428.64/x
  3. Step 3: Cross multiply
    18,925.72x = 26,117.16 × 10,428.64
  4. Step 4: Simplify right side
    18,925.72x = 272,366,459.46
  5. Step 5: Solve for x
    x = 272,366,459.46/18,925.72
  6. Step 6: Final answer
    x = 14,391.34

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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.