Home / 10,400.80-14,280.53-10,130.08

Finding the Fourth Proportional to 10,400.80, 14,280.53 and 10,130.08

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Solution

The fourth proportional to 10,400.80, 14,280.53 and 10,130.08 is: 13,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.80 : 14,280.53 = 10,130.08 : x
  2. Step 2: Convert to fraction form
    10,400.80/14,280.53 = 10,130.08/x
  3. Step 3: Cross multiply
    10,400.80x = 14,280.53 × 10,130.08
  4. Step 4: Simplify right side
    10,400.80x = 144,662,911.34
  5. Step 5: Solve for x
    x = 144,662,911.34/10,400.80
  6. Step 6: Final answer
    x = 13,908.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.