Home / 13,572.17-18,730.13-7,603.88

Finding the Fourth Proportional to 13,572.17, 18,730.13 and 7,603.88

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Solution

The fourth proportional to 13,572.17, 18,730.13 and 7,603.88 is: 10,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.17 : 18,730.13 = 7,603.88 : x
  2. Step 2: Convert to fraction form
    13,572.17/18,730.13 = 7,603.88/x
  3. Step 3: Cross multiply
    13,572.17x = 18,730.13 × 7,603.88
  4. Step 4: Simplify right side
    13,572.17x = 142,421,669.71
  5. Step 5: Solve for x
    x = 142,421,669.71/13,572.17
  6. Step 6: Final answer
    x = 10,493.66

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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.