Home / 9,639.04-13,298.85-5,389.53

Finding the Fourth Proportional to 9,639.04, 13,298.85 and 5,389.53

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Solution

The fourth proportional to 9,639.04, 13,298.85 and 5,389.53 is: 7,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.04 : 13,298.85 = 5,389.53 : x
  2. Step 2: Convert to fraction form
    9,639.04/13,298.85 = 5,389.53/x
  3. Step 3: Cross multiply
    9,639.04x = 13,298.85 × 5,389.53
  4. Step 4: Simplify right side
    9,639.04x = 71,674,551.04
  5. Step 5: Solve for x
    x = 71,674,551.04/9,639.04
  6. Step 6: Final answer
    x = 7,435.86

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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.