Home / 18,934.16-26,129.32-10,436.45

Finding the Fourth Proportional to 18,934.16, 26,129.32 and 10,436.45

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Solution

The fourth proportional to 18,934.16, 26,129.32 and 10,436.45 is: 14,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.16 : 26,129.32 = 10,436.45 : x
  2. Step 2: Convert to fraction form
    18,934.16/26,129.32 = 10,436.45/x
  3. Step 3: Cross multiply
    18,934.16x = 26,129.32 × 10,436.45
  4. Step 4: Simplify right side
    18,934.16x = 272,697,184.98
  5. Step 5: Solve for x
    x = 272,697,184.98/18,934.16
  6. Step 6: Final answer
    x = 14,402.40

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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.