Home / 14,439.69-19,915.74-9,970.92

Finding the Fourth Proportional to 14,439.69, 19,915.74 and 9,970.92

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Solution

The fourth proportional to 14,439.69, 19,915.74 and 9,970.92 is: 13,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.69 : 19,915.74 = 9,970.92 : x
  2. Step 2: Convert to fraction form
    14,439.69/19,915.74 = 9,970.92/x
  3. Step 3: Cross multiply
    14,439.69x = 19,915.74 × 9,970.92
  4. Step 4: Simplify right side
    14,439.69x = 198,578,250.28
  5. Step 5: Solve for x
    x = 198,578,250.28/14,439.69
  6. Step 6: Final answer
    x = 13,752.25

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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.