Home / 8,928.51-12,319.07-5,572.95

Finding the Fourth Proportional to 8,928.51, 12,319.07 and 5,572.95

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Solution

The fourth proportional to 8,928.51, 12,319.07 and 5,572.95 is: 7,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.51 : 12,319.07 = 5,572.95 : x
  2. Step 2: Convert to fraction form
    8,928.51/12,319.07 = 5,572.95/x
  3. Step 3: Cross multiply
    8,928.51x = 12,319.07 × 5,572.95
  4. Step 4: Simplify right side
    8,928.51x = 68,653,533.29
  5. Step 5: Solve for x
    x = 68,653,533.29/8,928.51
  6. Step 6: Final answer
    x = 7,689.25

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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.