Home / 15,068.80-22,603.20-7,278.40

Finding the Fourth Proportional to 15,068.80, 22,603.20 and 7,278.40

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Solution

The fourth proportional to 15,068.80, 22,603.20 and 7,278.40 is: 10,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.80 : 22,603.20 = 7,278.40 : x
  2. Step 2: Convert to fraction form
    15,068.80/22,603.20 = 7,278.40/x
  3. Step 3: Cross multiply
    15,068.80x = 22,603.20 × 7,278.40
  4. Step 4: Simplify right side
    15,068.80x = 164,515,130.88
  5. Step 5: Solve for x
    x = 164,515,130.88/15,068.80
  6. Step 6: Final answer
    x = 10,917.60

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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.