Home / 10,306.58-14,223.12-5,590.90

Finding the Fourth Proportional to 10,306.58, 14,223.12 and 5,590.90

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Solution

The fourth proportional to 10,306.58, 14,223.12 and 5,590.90 is: 7,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.58 : 14,223.12 = 5,590.90 : x
  2. Step 2: Convert to fraction form
    10,306.58/14,223.12 = 5,590.90/x
  3. Step 3: Cross multiply
    10,306.58x = 14,223.12 × 5,590.90
  4. Step 4: Simplify right side
    10,306.58x = 79,520,006.05
  5. Step 5: Solve for x
    x = 79,520,006.05/10,306.58
  6. Step 6: Final answer
    x = 7,715.46

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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.