Home / 10,590.42-15,890.75-7,490.35

Finding the Fourth Proportional to 10,590.42, 15,890.75 and 7,490.35

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Solution

The fourth proportional to 10,590.42, 15,890.75 and 7,490.35 is: 11,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,590.42 : 15,890.75 = 7,490.35 : x
  2. Step 2: Convert to fraction form
    10,590.42/15,890.75 = 7,490.35/x
  3. Step 3: Cross multiply
    10,590.42x = 15,890.75 × 7,490.35
  4. Step 4: Simplify right side
    10,590.42x = 119,027,279.26
  5. Step 5: Solve for x
    x = 119,027,279.26/10,590.42
  6. Step 6: Final answer
    x = 11,239.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.