Home / 9,075.14-12,528.66-5,490.71

Finding the Fourth Proportional to 9,075.14, 12,528.66 and 5,490.71

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Solution

The fourth proportional to 9,075.14, 12,528.66 and 5,490.71 is: 7,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075.14 : 12,528.66 = 5,490.71 : x
  2. Step 2: Convert to fraction form
    9,075.14/12,528.66 = 5,490.71/x
  3. Step 3: Cross multiply
    9,075.14x = 12,528.66 × 5,490.71
  4. Step 4: Simplify right side
    9,075.14x = 68,791,299.46
  5. Step 5: Solve for x
    x = 68,791,299.46/9,075.14
  6. Step 6: Final answer
    x = 7,580.19

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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.