Home / 10,557.19-14,555.71-7,722.28

Finding the Fourth Proportional to 10,557.19, 14,555.71 and 7,722.28

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Solution

The fourth proportional to 10,557.19, 14,555.71 and 7,722.28 is: 10,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.19 : 14,555.71 = 7,722.28 : x
  2. Step 2: Convert to fraction form
    10,557.19/14,555.71 = 7,722.28/x
  3. Step 3: Cross multiply
    10,557.19x = 14,555.71 × 7,722.28
  4. Step 4: Simplify right side
    10,557.19x = 112,403,268.22
  5. Step 5: Solve for x
    x = 112,403,268.22/10,557.19
  6. Step 6: Final answer
    x = 10,647.08

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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.