Home / 15,303.95-21,119.46-8,590.22

Finding the Fourth Proportional to 15,303.95, 21,119.46 and 8,590.22

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Solution

The fourth proportional to 15,303.95, 21,119.46 and 8,590.22 is: 11,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.95 : 21,119.46 = 8,590.22 : x
  2. Step 2: Convert to fraction form
    15,303.95/21,119.46 = 8,590.22/x
  3. Step 3: Cross multiply
    15,303.95x = 21,119.46 × 8,590.22
  4. Step 4: Simplify right side
    15,303.95x = 181,420,807.68
  5. Step 5: Solve for x
    x = 181,420,807.68/15,303.95
  6. Step 6: Final answer
    x = 11,854.51

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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.