Home / 15,250.77-21,037.95-12,582.63

Finding the Fourth Proportional to 15,250.77, 21,037.95 and 12,582.63

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Solution

The fourth proportional to 15,250.77, 21,037.95 and 12,582.63 is: 17,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.77 : 21,037.95 = 12,582.63 : x
  2. Step 2: Convert to fraction form
    15,250.77/21,037.95 = 12,582.63/x
  3. Step 3: Cross multiply
    15,250.77x = 21,037.95 × 12,582.63
  4. Step 4: Simplify right side
    15,250.77x = 264,712,740.81
  5. Step 5: Solve for x
    x = 264,712,740.81/15,250.77
  6. Step 6: Final answer
    x = 17,357.34

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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.