Home / 10,515.36-15,773.28-3,590.40

Finding the Fourth Proportional to 10,515.36, 15,773.28 and 3,590.40

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Solution

The fourth proportional to 10,515.36, 15,773.28 and 3,590.40 is: 5,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.36 : 15,773.28 = 3,590.40 : x
  2. Step 2: Convert to fraction form
    10,515.36/15,773.28 = 3,590.40/x
  3. Step 3: Cross multiply
    10,515.36x = 15,773.28 × 3,590.40
  4. Step 4: Simplify right side
    10,515.36x = 56,632,384.51
  5. Step 5: Solve for x
    x = 56,632,384.51/10,515.36
  6. Step 6: Final answer
    x = 5,385.68

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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.