Home / 13,775.04-19,009.77-7,487.43

Finding the Fourth Proportional to 13,775.04, 19,009.77 and 7,487.43

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Solution

The fourth proportional to 13,775.04, 19,009.77 and 7,487.43 is: 10,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.04 : 19,009.77 = 7,487.43 : x
  2. Step 2: Convert to fraction form
    13,775.04/19,009.77 = 7,487.43/x
  3. Step 3: Cross multiply
    13,775.04x = 19,009.77 × 7,487.43
  4. Step 4: Simplify right side
    13,775.04x = 142,334,322.19
  5. Step 5: Solve for x
    x = 142,334,322.19/13,775.04
  6. Step 6: Final answer
    x = 10,332.77

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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.