Home / 15,307.90-22,952.28-6,420.84

Finding the Fourth Proportional to 15,307.90, 22,952.28 and 6,420.84

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Solution

The fourth proportional to 15,307.90, 22,952.28 and 6,420.84 is: 9,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.90 : 22,952.28 = 6,420.84 : x
  2. Step 2: Convert to fraction form
    15,307.90/22,952.28 = 6,420.84/x
  3. Step 3: Cross multiply
    15,307.90x = 22,952.28 × 6,420.84
  4. Step 4: Simplify right side
    15,307.90x = 147,372,917.52
  5. Step 5: Solve for x
    x = 147,372,917.52/15,307.90
  6. Step 6: Final answer
    x = 9,627.25

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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.