Home / 8,970.24-12,378.88-5,244.16

Finding the Fourth Proportional to 8,970.24, 12,378.88 and 5,244.16

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Solution

The fourth proportional to 8,970.24, 12,378.88 and 5,244.16 is: 7,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.24 : 12,378.88 = 5,244.16 : x
  2. Step 2: Convert to fraction form
    8,970.24/12,378.88 = 5,244.16/x
  3. Step 3: Cross multiply
    8,970.24x = 12,378.88 × 5,244.16
  4. Step 4: Simplify right side
    8,970.24x = 64,916,827.34
  5. Step 5: Solve for x
    x = 64,916,827.34/8,970.24
  6. Step 6: Final answer
    x = 7,236.91

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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.