Home / 14,478.85-19,979.62-8,510.77

Finding the Fourth Proportional to 14,478.85, 19,979.62 and 8,510.77

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Solution

The fourth proportional to 14,478.85, 19,979.62 and 8,510.77 is: 11,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.85 : 19,979.62 = 8,510.77 : x
  2. Step 2: Convert to fraction form
    14,478.85/19,979.62 = 8,510.77/x
  3. Step 3: Cross multiply
    14,478.85x = 19,979.62 × 8,510.77
  4. Step 4: Simplify right side
    14,478.85x = 170,041,950.51
  5. Step 5: Solve for x
    x = 170,041,950.51/14,478.85
  6. Step 6: Final answer
    x = 11,744.16

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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.