Home / 9,580.95-13,221.23-5,389.47

Finding the Fourth Proportional to 9,580.95, 13,221.23 and 5,389.47

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Solution

The fourth proportional to 9,580.95, 13,221.23 and 5,389.47 is: 7,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,580.95 : 13,221.23 = 5,389.47 : x
  2. Step 2: Convert to fraction form
    9,580.95/13,221.23 = 5,389.47/x
  3. Step 3: Cross multiply
    9,580.95x = 13,221.23 × 5,389.47
  4. Step 4: Simplify right side
    9,580.95x = 71,255,395.50
  5. Step 5: Solve for x
    x = 71,255,395.50/9,580.95
  6. Step 6: Final answer
    x = 7,437.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.