Home / 10,306.71-14,222.87-5,590.89

Finding the Fourth Proportional to 10,306.71, 14,222.87 and 5,590.89

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Solution

The fourth proportional to 10,306.71, 14,222.87 and 5,590.89 is: 7,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.71 : 14,222.87 = 5,590.89 : x
  2. Step 2: Convert to fraction form
    10,306.71/14,222.87 = 5,590.89/x
  3. Step 3: Cross multiply
    10,306.71x = 14,222.87 × 5,590.89
  4. Step 4: Simplify right side
    10,306.71x = 79,518,473.70
  5. Step 5: Solve for x
    x = 79,518,473.70/10,306.71
  6. Step 6: Final answer
    x = 7,715.21

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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.