Home / 10,900.02-15,038.16-7,125.36

Finding the Fourth Proportional to 10,900.02, 15,038.16 and 7,125.36

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Solution

The fourth proportional to 10,900.02, 15,038.16 and 7,125.36 is: 9,830.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.02 : 15,038.16 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    10,900.02/15,038.16 = 7,125.36/x
  3. Step 3: Cross multiply
    10,900.02x = 15,038.16 × 7,125.36
  4. Step 4: Simplify right side
    10,900.02x = 107,152,303.74
  5. Step 5: Solve for x
    x = 107,152,303.74/10,900.02
  6. Step 6: Final answer
    x = 9,830.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.