Home / 9,990.52-14,985.78-2,970.51

Finding the Fourth Proportional to 9,990.52, 14,985.78 and 2,970.51

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Solution

The fourth proportional to 9,990.52, 14,985.78 and 2,970.51 is: 4,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.52 : 14,985.78 = 2,970.51 : x
  2. Step 2: Convert to fraction form
    9,990.52/14,985.78 = 2,970.51/x
  3. Step 3: Cross multiply
    9,990.52x = 14,985.78 × 2,970.51
  4. Step 4: Simplify right side
    9,990.52x = 44,515,319.57
  5. Step 5: Solve for x
    x = 44,515,319.57/9,990.52
  6. Step 6: Final answer
    x = 4,455.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.