Home / 14,130.24-21,210.12-10,436.64

Finding the Fourth Proportional to 14,130.24, 21,210.12 and 10,436.64

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Solution

The fourth proportional to 14,130.24, 21,210.12 and 10,436.64 is: 15,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.24 : 21,210.12 = 10,436.64 : x
  2. Step 2: Convert to fraction form
    14,130.24/21,210.12 = 10,436.64/x
  3. Step 3: Cross multiply
    14,130.24x = 21,210.12 × 10,436.64
  4. Step 4: Simplify right side
    14,130.24x = 221,362,386.80
  5. Step 5: Solve for x
    x = 221,362,386.80/14,130.24
  6. Step 6: Final answer
    x = 15,665.86

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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.