Home / 8,903.86-12,288.59-5,126.64

Finding the Fourth Proportional to 8,903.86, 12,288.59 and 5,126.64

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Solution

The fourth proportional to 8,903.86, 12,288.59 and 5,126.64 is: 7,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.86 : 12,288.59 = 5,126.64 : x
  2. Step 2: Convert to fraction form
    8,903.86/12,288.59 = 5,126.64/x
  3. Step 3: Cross multiply
    8,903.86x = 12,288.59 × 5,126.64
  4. Step 4: Simplify right side
    8,903.86x = 62,999,222.51
  5. Step 5: Solve for x
    x = 62,999,222.51/8,903.86
  6. Step 6: Final answer
    x = 7,075.50

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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.