Home / 10,355.60-15,543.70-4,810.20

Finding the Fourth Proportional to 10,355.60, 15,543.70 and 4,810.20

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Solution

The fourth proportional to 10,355.60, 15,543.70 and 4,810.20 is: 7,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.60 : 15,543.70 = 4,810.20 : x
  2. Step 2: Convert to fraction form
    10,355.60/15,543.70 = 4,810.20/x
  3. Step 3: Cross multiply
    10,355.60x = 15,543.70 × 4,810.20
  4. Step 4: Simplify right side
    10,355.60x = 74,768,305.74
  5. Step 5: Solve for x
    x = 74,768,305.74/10,355.60
  6. Step 6: Final answer
    x = 7,220.08

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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.